Grain-binder



(No Model.) 6 Sheets-#Sheet 1.

' R. M. HUNTER.

` GRAIN BINDER. No. 273,089.

6 Sheecs--Sheet` 2.

R. M. HUNTER.

GRAIN BINDER.

Patented Feb.27, 1883.

w WU m ==w@ (No Model.)

(No Model.) 6 Sheets-Sheet 3. R. M. HUNTER. f

GRAIN BINDER. No. 273,089. Patented Feb.2 7, 1883.

N. PETERS. Phuminmgmpwer. washmglun. D. c.

(No Model.) 6 Sheets-Sheet 4.

N. PETERS, Fmwmhagmpber, washingwn. D4 C,

. (reo Model.) l e sheets-sheet 5.

' R. M. HUNTER.

GRAIN BINDER.

No. 273,089. Patented Feb.2'7, 1883.

' WI i i Millenium l .ij Nlllwllll N. PETERS. washing. nc.

(No Model.) 6 Sheets-Sheet 6.

'- R. M. HUNTER.

GRAIN BINDER. Y

Patented Feb.`27,1883..

NITED STATES PATENT rrlcn.

RUDOLPH M. HUNTER, OF PHILADELPHIA, PENNSYLVANIA.

GRAIN-BINDER.

SPECIFICATION forming part of Letters Patent No. 273,089, dated February 27, r1883. Application filed May`29, 1882. (No model.)

To all whom it may concern:

Be it known that I, RUDOLPH M. HUNTER, of the city and county of Philadelphia, and State of Pennsylvania, have invented new and useful Improvements in Grain Binders, of which the following is a specification, reference being had to the accompanying drawings, which form part thereof.

My invention has reference to grain-binders in general, but more particularly7 to what are known as cord-knotters, and it consists in the arrangement of two pairs of jaws adapted to reeiprocate,one of which has theloop formed upon itself, and the other of which advances and seizes the cord, and after it has been severed by the knife draws the free ends over and across the loop lying on the looper and into the jaws of the looper, and combining with the above-described pairs of jaws a holder for the cord and a cutter to sever the cord after the pair of nipper-jaws has closed upon the ends; further, in combining with the above a binderarm and a clamp arranged between the bundle and knetter to clamp and hold the cords to prevent any undue tension being put upon the cord ends during the act of tying the knot; further, in a binder-arm having ajointed end, which is adapted to enter the grain ina perpendicular line and afterward double under to pass the binding-cord into the cord-holder; further, in an improvement in tension devices for the binding-cord, by which an increased tension is put upon the cord when the cord has been almost passed around the gavel, and before theknot is tied, combined with means to draw the two ends of the loop formed by the cord passing around the gavel and clamp them, and in many details of construction, all of which are more fully set forth hereinafter.

The object of my invention is to provide binding mechanism in which the loopisformed by the reciprocation of parts, and practically without rotary motion, thereby simplifying the construction of the knotting mechanism and making it more durable and less liable to 'get out of order; also, to provide a tension binding, and attain other results, which will be fully explained hereinafter.

In the drawings, Figure l is a perspective view of the binding mechanism of a' grainbinder embodying my improvements. Fig. 2 is an elevation of-same, with the binder-arm and its supporting mechanism removed. Fig. Sis a plan' of same, with the frame A and all above removed. Figs. 4 to 12 are detail perspective views, and show the gradual formation of the knot. Fig. 13 is a section of part of the looping and clamping devices on line y y of Fig. 14. Fig. 14 is a cross-section of same on line x an of Fig. 13. Fig. 15 is an oblique sectional elevation of the looping mechanism on line z z of Fig. 16.` Fig. 16 is a cross-section of same enlarged, and showing the cord-clamp on line w w of Fig. 15. Fig. 17 is a side elevation of the cord-holder and its knife. Fig. 18 is a plan view of same, looking upward. Fig. 19 isa perspective view of same and a part of the binder-arm, showing how the cords are fed to the holder. Fig. 20 is a plan view, looking upward, of the cams adapted to actnate the jaws which place theends of the cord in the loopingjaws', also the cord-clamp and cord-holder. Fig. 21 is a plan view of the cam` which actuates the hindern-rm, tension device, andthe binder-mechanismsupporting frame. Fig. 22 is a cross-section, on line n c of Fig. 1, of the binder-arm shaft, and shows the tension device for the cord in elevation. Fig. 23 is a perspectiveview of a modified arrangement of the looping devices; and Fig.2t is aplan view of another modification of the looping mechanism, showing the bodies of the two pairs of jaws parallel to each other and on each side of the cord-holder to shorten the binder-frame.

Ais the binder-mechansm-supportingframe, pivoted at one end upon the vertical shaft B, which may be rotated by a shaft, F, through the mediation ofthe bevel-wheels F F2. The upright post or standard A', secured to the binder-m echanismsu pportin g frame, carries at its top the bearingA2, in which the horizontal hollow binder arm shaft C is journaled and kept from end movement by collar Cand crank G2. If desired, this binder-arm shaft may be arranged ohliquely vertically to the horizontal binder-mechanism-supporting frame. To the ICC end of the binder-arm shaft is secured thejointed binder-arm D, which consists of the part D', secured firmly to' the binder-arm shaft, andthe hinged part D2, which is hinged to part D at d, is curved on one edge, as at d', to allow the cord-clam p to secure the cords, and carries in its point the cord-guide d3. Pivoted to part D2,

at d2, is the rod c', which is reciprocated by an eccentric or crank, c, secured upon the end of the shaft O3, which is carried within the hollow binder-shaft C, and is provided on its other end with a crank, G4.

The tension device is constructed as follows: Secured to the bearing A2, or other stationary part of the machine, is a clamping-jaw, A4, provided with supporting-prongs A5, over which the cord U is drawn. Working against this jaw A4 is a hinged arm, A3, having a perforated clamping-jaw to correspond with the jaw A4, and attached to said arm is one end of a spring, AG, the other end of which is secured to the collar C', which is fast tothe binder-arm shaft, or direct-ly to the binder-shaft C, so as to keep the jaws closed. Then the binder-arm rocks to encircle the gavel the spring is gradually eased, and then when the gavel is nearly encircled gradually put under increased tension. It changes its position, as shown by dotted lines in Fig. 22. I do not confine myself to any particular construction, as my invention comprehends broadly any mechanism which is i is the rod E,guided at the bottom by a pivoted guide-box, Ef, which is pivoted on a stud secured to the frame A, and upon which it rocks to allow for the movement ofthe crank C2, and said rod is provided on the bottom with an anti-friction cam-roller, e2, pivoted to an arm on the hub E5, the said roller working against the face of a cam,B. Encircling the rod E,and resting upon the guide-box E", is a spring, E2, and immediately above said spring is a loose collar, E3, to which is connected a rod, E4, pivoted at its upper end to the crank G4 on the shaft G3, which actuates the jointed end ofthe binderarm. A stop, e', prevents the collar E3 being moved up too far by the spring.

Secured firmly to the rod E,and a short distance above the loose collar E3,is the collar c.

The cam-wheel B is secured to the vertical shaft B, and is provided with the upper and lower lateral faces, b3 b', and peripheral camsurfaces b, b2, und b4. Of these, through the agencyof the intervening mechanism set forth above, the face b2 holds the binder-arm out of the grain, the cam part b forces it down through the grain, the lower face, b', holds 4it down while the knot is being tied,the peripheral cam-surface b2 raises the binder arm out of the grain by acting upon roller e2 and rod E, and the peripheral cam-surface is designed to "to the respective parts.

rock the arm B2, and which, by means of bar B3 and pin B4, oscillates the binder-mechanismsupporting frame to cause it to advance and take a gavel, bind it in movingbacli, and linally discharge the bound bundle, as is common in nearly all of this class of grain binding machines. A spring, B5, may be used to keep the arm B2 against the cam. lf desired, there may be two separate cams,or the binder frame may be oscillated by any of the well-known devices now in use.

When this binding mechanism is used upon what are known as the Marsh harvesters 7 the binder -mechanism supporting frame is made to oscillate, .the Vcams rotating; but when used upon machines having rotating platforms the binder mechanism supporting frame is made to rotate and the cams may remain stationary.

Located above the cam-wheel B', and secured to the shaft B, is the double-faced cam-groove wheel G, provided on the Lipper surface with a cam-groove, g, which actuates the loopingjaws by means of a roller, 7c, and rod K, the' latter two being guided by guides 702.011 the under side of the binder-mechanism'supporting frame A, and on its lower face with a camgroove,f, which actuates the nipper-jaws by means of roller L and rod K, which are also guided by guide k2, secured also to the bindermechanism-supportingframe. The cam-groove v g is clearly shown in Fig. 3, and cam-groove f is clearly shown in Fig. 20, the former of which has one irregular part, g', and the latter two irregular parts,j"j'2. The parts g and f2 are disposed in position to each other as shown in Fig. 3, for the purpose ofcausing the looperjaws to move in one direction and the nipperjaws in the other direction, during which action the latter place the free ends of the cord into the looper-jaws.

L represents the pair of looper-jaws, and M the pair of nipperjaws. They are arranged substantially parallel to each other, and so that they shall move in nearly the same line. In all of the drawings, except Fig. 23, the nipper` jaws'are designed to pass between the looperjaws, which are always open, except when completing the knot, and in Fig. 23 the nipperjaws are arranged to pass up over the looperjaws, drawing the free ends of the cord lirst over and then down into the looper-jaws, which close upon them, as shown in dotted lines, this auxiliary movement to the nipper-jaws being given by a cam, N3, on the frame, and roller N2, secured to the body of said klipper-jaws. The looper and nipperjaws may be constructed substantially alike. In describing one I de scribe the other, the letters L and M referring The body of the looper is made hollow, as at L', and carries at one end the fixed jaw LG. Journaled in the body is a rod or shaft, L2, carrying on one end the movable jaw U and on the other end a crank-arm, L4, provided with an anti-friction roller, Z4. A spring, L5,

IIO

emessi I 3 encircles the shaft L2, and one end of it is secured thereto, and the other is made fast to a plug, L3, placed in the end of the looper and forming part ot' the bearing for the shaft L2. This plug L3 is kept from turning by a setscrew, Z3. The spring L5 keeps thejaws L6 L" pressed together when the roller l4is free from the actuating-cams Z6 and Z2 on the frame. The looper slides in bearings l, and is prevented from turning by a groove, Z2, and pin l', or other equivalent means. When in the position shown in Fig. 2 the cam part Z6 causes the jaws to remain open; but as the looper is drawn back the roller leaves the cam part Z6 and the jaws suddenly close, and as they continue their backward movement they are at the last moment very slightly opened to free the ends of the cord to allow the bundle to be easily discharged. This last opening is accomplished by cam part lf The general construction of the nipper-ja'ws `M is the same as that jnst described; but in this case the body is shown as guided by its operatingstud m3, sliding in a slot, m2, in the frame, and the jaws M6 and Ml--the former of which is fixed and the latter movable-are closed all the time, except when about to seize the cords next i0 the holder. Therefore the spring M5 keeps them closed until the roller m4 strikes the pivoted cam m5, pivoted to the binder-mechanism-supporting frame at m, and pressed against a stop-pin, m8, by a spring, m7. As the ni pper-jaws are moved toward thelooper, and as they are about to seize the cords held in the holder, the roller m4 strikes .the under side ot' vthe cam m5 and quickly opens the jaws M6 M7, the cords passing between them. The roller then passes the cam and the cords are clamped, and after the knife severs them the Dipper-jaws are drawn back; but now the roller passes over and presses down the cam m5 and does'not open thejaws.

The looper L is provided with a groove, l5, ruiming in a line with the clampingfaces of thejaws, and in this groove the point a of the end of' spring-linger N is made to lie by spring N', which keeps it in contact with the looperV as the latter moves before it.' This springtin ger is pivoted to the frame at n2, and above the point n of the same is a curved part, u', over which and the point n the loop is formed and knot tied, as more clearly set t'orth hereinafter.

Above the looper and nipper-jaws, and formingA part of the binder-mechanism-supporting frame, is the slot O, which extends a short distance beyond the vertical plane, extending longitudinally through the looper-body, and ends in a clamping-face, 03. The sides of this slot are curved, as shown at O' O2, and upon the latter, as a guide, the clamp-lever P works. Its head is prevented from displacement vertically by a groove and feather, o, and carries pivoted thereto, atp, the cord-bending arm P', provided npon one edge with a cam-face, p3, which works with the cam O4 in slot O to depress the said arm to the position shown in Figs. 14 and 16, and on its under edge it is curved in, as shown at p', to allow the looping-jaws to t'reely pass. Near its bottom or end it is provided with a stud or projection, P2, under which the cords are held when the knot is being tied, and when the cords are clamped between the clamp-lever P and face O3. VThe part p2 prevents the cords which are bent about the looper being drawn into the jaws of same. When the arm P' is relieved from the action of the cam O4 the spring P3 causes it to be raised clear of the looper, the projection P2 fitting upon the end ofthe clamping-face of lever P. n This clamping-lever P is pivoted to the binder-mechanism-supporting frame at p4, and is pressed out of clamping position by a spring, P4, when relieved from the action of peripheral cam G', by which itis made to clamp, through the mediation of lever H, pivoted to the binder-mechanismsupporting frame at h, and carrying on its end an antifriction roller, H', and bar or rod I, hinged to said lever H at h. The cam G' is formed upon the periphery of the cam G, secured to the shaft B, previously described.

A cord-guide, N2, may be secured to the nnder side of the binder-mechanism-supporting frame and curve down to the looper to prevent the cords passing over4 the jaws while being bentabout the body of saine, as shown in Figs. 15 and 24, and the upper part of the looper, close to the jaws, may be cnt down, as shown at L8 in Fig. 24, to allow the nipper-jaws to more easily pass above the cords, which by this means are brought lower down when acted on by the cord-bending arm P'.

The jaws L6 L7 ofthe looper, as well as the jaws MGM'ot'thenippers,may be madestraight, or curved, as shown inv Fig. 16, which latter construction allows of amore compact arrangenient of parts.

The cord-holder is constructed as follows: The part R is provided in front with the curved depending lingers R', between which the gathering-fingers R3 and knife R4 work, they being secured to a common hub provided with the crank S', andjourualed at S to the partR, which is secured firmly to the bindermechanism-snpporting frame., close to thelooper, and a little to one side ot' the clamp-face O3. Y The gathering-fingers R3 are provided with the two curved edges 1' and r', the former of which catch the cords U, and as they are pressed into the clamp or holder they move toward the edge r', and this forces them up between the solid or rigid fingers R' and the spring-lingers R2, which press against them, without any tendency to cut or bind upon the cord, since when the cords enter between the fingers R' R2 the edge r' is pressing up, and its edge is substantially at right angles to the line of contact of the fingers R' and R2. The knife or cutter is provided with a removable blade, R5, provided with the curved cutting-edge r2 and the straight part ra, part of which onlyis made IOO IlO

sharp, so as to have the part corresponding to the juncture of curved part r2 and straight part r3 made sharp. The cutting-edge of the knife is a little in the rear of the gatheringedges of the lingers R3, so as to prevent any possibility of prematurely cutting the cords, and also to insure the cords being put under tension by being drawn over the cutting-block Q, secured to the part R or binder-mechanismsupporting frame. This block Q, is provided y with horizontal edge q and a curved edge, q',

against which latter one of the spring-fingers R2 shorter than the rest is arranged to press, as shown in Figs. 17 and 18. When the knife ascends the cords are gathered in the corner g2 bythe various parts, as shown in dotted lines, and severed. The spring-fingers R2 correspond with the rigid iingers R', their edges pressing together for considerable length, the former being rounded, as at t', and the latter concave or grooved, as at t, or vice versa; but this is not necessary. The spring-lingers are bolted by means of their curved support to the binder mechanism supporting frame. `The waste ends of cord pass out from between iingers R and R2 into the groove T in the frame and escape as fresh cords are pressed in. The relative position of the binder-arm tothe cordholder when the cords are passed around the gavel is shown in Figs. 17 and 19. The gathering-fmgers and knife are operated by the bar 1', pivoted'to crank S', and receives two distinct motions-viz, one to clamp and one to sever` the cords.

Pivoted to the lever H, at h2, is a bell-crank, 12, carrying on one end an anti-friction roller, i, the other end of which is pivoted at i to the bar l', the end of which is curved, so that the line of thrust is through the pivot h2 of the bell-crank 12. The bar 1 is provided with a stop, i4, which brings the bell-crank at rest when its arm is at an angle to the line of thrust on bar 1', and they are normally kept in such relative position by 'a spring, 3. The periphery of the cam-wheel Gr is provided with a small cam, G2, adapted to strike the roller t' and oscillate the bell-crank 12 to increase the inovemeutof the bar I for the purpose of actuating the knife R4 for giving the second movement to the clamp and knife at the proper time to sever the cords. lf desired, the cam Gr2 may continue to the end of cam G', as it is not neeessary to withdraw the knife from the stationary cutting-edge immediately after severing the cords.

The operation is as follows: The gavel having been laid, the cam-surface b,through the agency of mechanism previously specified, causes the binder-arm to descend, and after the point of same has passed through the grain the collar e actuates the eccentric o, causing the hinged or jointed end D2 ofthe binder-arm to turn up, as shown in Figs. 17 and 19, and pass the cord between the fingers R R2, and within reach of the gathering-fingers R3. It being supposed that the end of the cord is held in the cordclamp, we will now find the cord to extend from holder, under looper, around gavel, again under the looper, as shown in Fig. 4, and to end of binder-arm. Now, as the cam-wheel G is rotated the peripheral cam G moves the lever H and gathers in the cordsinto the holder. This is shown in Fig. 4, and at the same time the cord-clamp lever P clamps the cords between the gavel and looper, and the arm 1?' is thrust down by the cam O4, bending the cords partly around the looper. This is shown. in Fig. 5. Now the partf of the cam-groovef draws in the nipper-jaws M, and the closed jaws M6 M" pass over the cords extending from the clamp to the looper, as shown in Fig. 6. As they still advance the cam m5 causes the jaws to open and' pass on either side of the cords held in the cord-holder, and extending thence to the looper, as shown in Fig. 7. The cam m5 is then passed and thejaws clamp the cords, and at this instant the cam Gr2 oscillates the bell-crank l2, causing the knife R4 to sever the cords, and the parts are as shown in Fig. 8. Now the part g of thecam-groove g draws the looper-jaws back and the part f2 of the groove f moves the nipper-jaws forward, the latter preferably moving most rapidly and drawing the free ends of the cord (the knife having operated to cut the cords, as previously set forth) over the part held down by the projection P2 ou arm P', and between the looperjaws, as shown in Fig. 13, and as the looper moves back the linger N, lying in the groove on the jaws, is struck by the loop and slides it up on the jaws, as shown in Fig. 9, the curved looper acting as a cam to control the movement of the stripper-finger N. As this motion is continued the roller i4 runs oli' cam ZG and the jaws L6 L7 close upon the free ends of the cord, as shown in Fig. 10. Now the jaws of the looper and those of the nippers are pulling in opposite direction, and the cord ends are drawn out ofthe nipper-jaws, or they may be slightly opened by a cam, m9, and as the looper still moves back the finger N pushes the loop over the jaws and off the same, the free ends being drawn through the loop, which is now held upon the prong it ofthe finger N, as shown in Fig. 11. As the looper is still moved back the spring projects the lin ger and the'knot-is tightened, and then the cam part Z7 causes the looper-jaws-to be slightly opened, but not until the clamping-lever P has been drawn back and the knot pushed up close to the bundle by the finger N, upon which it is tied. The bundle is now freed and the binderarm is caused to ascend, but not until after the looper L has returned to its original place. During the operation just described the bindermechanism-supporting frame is either oscillated or rotated, as the case may be, according as to'w'hat class of machine it is used upon, in the former case the cams being rotated and in the latter remaining stationary. As the binder-arm is descending the cord is drawn from boX A under gradually-decreasing ten- IOC IIC

sion, and toward the completion of the movement of the binder-arm the tension is increased and is greatest. The effect of this is first to prevent spreading of the grain by drawing it up into a round gavel, then to give easy supply of cord to encircle the gavel, next, to give increased tension as the bundle is encircled, and, finally, to give much increased tension to tighten up the gavel, the additional tightening effect being accomplished by clamping-le ver I. The increased tension is given before the tying of the knot begins.

I do not limit myself to particular constructions shown, as they may be modified in vari ous ways. Neither is it necessary to my invention that the nipper-jaws pass between the looper-jaws,las the nippers may be made to move over the loopers ,and yet accomplish the same result, as shown in Fig. 23.

I am aware that it is' not new to use a reciprocating looper combined with means for Wrapping the cord around the looper, and a reciprocating device for placing the cord in thejawsof the 1ooper-as, for instance, in Hull, 190,041, April 24, 1877; but in this construction the device. for placing the cord in the looper-jaws does not advance and seize the cord and draw it into the looper-jaws; but the binder-arm lays the cord into this device,which then carries the cord to thelooper-jaws. This further differs from mine, in that the applied band is not severed from the spool portion until after the cord has been carried to and seized by the looper-jaws. In other words, the cut or free ends of the cord are not carried into the looperjaws.

I am also aware that it is not new to use a reciprocating device upon which the loop is formed, combined with means to wrap the cord around the same, and a pair of reciproeatin g jaws which passes between the prongs of the first-named device and seizes thebcord, and after the applied band is severed from the spool portion draws the cut ends through the 1oop--as, for instance, in Keller, 200,544, February 19,1878; but in this construction the device upon which the loop isformed has rigid prongs, instead of clamping-jaws, and cannot therefore hold the ends while the loop is pushed oft' and the knot tightened, as mine does. v

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a cord-knetter, two pairs of reciprocating jaws, upon one of which the loop is formed, and the other of `which advances and seizes the cord, and after it has been cut draws the free ends thereof over into the looper-jaws, in combination with operating mechanism, and means to cut the binding-cord immediately after the [ripper-jaws have seized said cord, and before they have carried the` ends into the looper-jaws.

2. In a cord-knotter, a pair of reciprocating looper-jaws, in combination with means to pass 3. In a cord-knetter, a pair of reciprocating looper-jaws, in combination with means to pass the binding-cord around said looper-jaws, a pair of reciprocating nipper-jaws which advances and seizes the cord, and after it has been cut draws the free ends thereof into the looper-jaws, means to cut the binding-cord close to the nipper -jaws immediately after said jaws have seized said cord, and before they have carried the ends into the looperjaws, and means to push the loop overthe ends of the cord and off the loopingjaws.

4. In a cordknotter, a pair of reciprocating looper-jaws upon which the loop is formed, in combination with a pair of reciprocating nipper-jaws which advances and seizes the cord, and after it has been cut draws the free ends thereof over the loop formed on` the looperjaws, and delivers it into said looper-jaws, by which it is clamped, a cord-holder and knife arranged on one side ofthe looper-jaws, acordclamp arranged between the looper and gavel, and a bi11derarm adapted to pass the cord around thegavel and into the oord-holder, the said knife being adapted to sever the bindingcord immediately after it has'been seized by the nipper'jaws, and before they have carried the ends into the looper-jaws.

5. In a eord-knotter, a reciprocating looper provided on its end with a pair of curved jaws, and around which the cord is passed, in combination with means to bend the cord around said looper to form the loop, a pair of reciprocating Dipper-jaws, arranged to reciprocate between the open looper-jaws, which advances and seizes the cord, and after it has been cut draws the ends thereof over the loop formed on the looper and into the looper-jaws, by which said ends are clamped and held, and devices to cause said ends to be drawn through the loop.

. 6. In a grain-binder, a jointed binder-arm which enters the grain ou a line substantially IIO IIS

perpendicular to it, in combination with mechanisni to oscillate s'aid binder-arm, a cam or eccentric arranged in line with the shaft of the binder-arm, a rod connecting said eccentric with the jointed end of the binder-arm, and means to rotate said eccentric to turn the jointed end up toward the binding-shaft, after it has passed below the binding platform or table, for the purpose of passing the cord into the cord-holder. V

7 In a cord-knotter, a tension device for the binding-cord, eonsistin g of two clam ping-j aws, between which the cord passes, and means to increase the clamping-pressure between said jaws as the binding-arm is completing the operation of passing the cord around the gavel, and before the knot is begun to be tied, in combination with said binding-arm and its'operating. mechanism, and means to draw the cord ends formed bythe loop around the gavel together and firmly clamp them.

8. In a cord-knotter, a tension device for the binding-cord, adapted to relieve the tension of the cord as the binder-arm enters the grain and increase the tension on the binding-cord while the binding-arm is completingthe operation of passing the cord around the gavel and into the knot-tying mechanism, and before the knot is begun to be tied or cord clampedv loop formed by the binding-cord around theV bundle together and clamp them.

9. In a grain-binder, a cord-clamp arranged between the knot-tying mechanism and gavel, and provided with a hinged arm to bend or force the cords down around the looper of the knot-tying mechanism, said cordbending mechanism operatingjust before the cords are firmly clamped. Y

10. In a grain-binder, a looper and means to clamp the binding-cords between the looper and gavel, in combination with hinged mechanism to force or bend said binding-cord be'- tween said clamp and looper down around said looper, nipper-jaws which pass over the bend in the said binding-cord, and a cam to operate said hinged mechanism.

l1. In a cord-knetter, areciprocating looper, upon which the loop is'forrned, in combination with a linger, upon the end or" which the knot is formed and tightened, a springto press said finger at all times against the looper, the moye-VY ments of said finger to and from the gavel being controlled wholly by the reciprocation of said looper.

12. In a cord-knotter, areciprocating looper, which consists of a cylindrical body provided on its end with a pair of curved jaws, in combination with a linger pressed against said 'Y looper by a spring, and around which the loop is formed and knot tied, the said finger being adapted to push said loop off said looper, the movements of said tinger being actuated by the body'and curved jawsof the looper, which perform the function of a cam. Y

13. In a cord-knotter, a reciprocating looper having its surface curved to form a cam, in combination withaspring, and a finger pressed against said looper by said spring, and upon the end of which the knot is tightened, the

said finger moving to and from the gavel and having its movement controlled whollyr by the cam-face of said looper.

14. In a cord-knotter, a pair ot' reciprocating looper-jaws, upon which the loop is formed, and a pair of nipper-jaws which advances and seizes the cord, and after ithas been eutdraws the free ends thereof over theA loop on the looper-jaws and into the said looper-jaws, in

combination with means to cut the bindingcord close to the nipper-jaws immediately at'- ter said jaws have seized said cord, and before they have carried the ends into the looper-jaws, and a jointed binder-arm arranged to pass the cord around the looper-jaws and into the cordholder.

15. In a cord-knotter, a pairof reciprocating looper-jaws, upon which the loopis formed, and a pair of nipper-jaws which advances and seizes the cord, and afterithas been cut draws thefree ends thereofover the loop on the looperjaws and into saidjaws, where they are clamped, in combination with means to cut thebindingcord close to the nipper-jaws immediately after said jaws have seized said cord, and before they have carried the ends into the looper-jaws. a cord-clamp arranged between the gavel and looper, a stationary cord-holder arranged to one side ofthe knife, and a binder-arm to pass the cord under the looper and into the cordholder.

16. In a cord-knetter, a pairof'reciprocating looper-jaws, upon which the loop is formed,

and a pair of nipper-jaws whichadvances and f seizes the cord, and afterit has been cut draws thefreeends thereof overthe loop on thelooper and into the looper jaws, where they are clamped, in combination with means to reciprocate said jaws, means to cut the binding-cord close to the Dipper-jaws immediately after said jaws have seized said cord, and before they have carried the ends into the looper-jaws, a cord-clamp arranged between the gavel and looper, a stationary cord-holder arranged to oneside of the knife, a finger upon which the knot is tied and tightened, and a binder-arm to pass the cord around the gavel and into the cord-holder. n Y

17. In a cord-knotter,a pair of reciprocating looper-jaws, uponwhich the loop is formed, and a pair of Dipper-jaws which advances and seizes the cord, and after it has been cut draws the free ends thereoi'over the loop on thelooper and into the looperjaws, where they are clamped, in combination with a cord-clamp to clamp the binding-cord between the gavel and looper, and means to bend or force the cords around the looper to complete the loop.

18. In a cord-knotter, the combination oi' the looper L, provided withjaws L6 Ll, the nipper M, provided with jaws NIG M7, and means to reciprocate both sets ofjaws, the cranks L4 M4, provided on their ends with anti-friction rollers Z4 m4, and the cams to actua-te said cranks to open both the nipper and the looper jaws.

19. In a cord-knotter, the combination of the looper L, provided with jaws L LT, the nipper-jaws M6 M7, and means to reciprocate them, the cranks LL M4, provided on their ends with anti-friction rollers, and the cams mi and i6, the former of whichacts to open the nipper- 4jaws when moving in one direction only, and

the latter acting in the same manner upon the looper-jaws.

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20. In a cord-knotter, the louper-jaws, consisting of' hollow body L, carrying fixed jaw L6, in combination with shaft L2, carrying on one end the movable jaw L7 and on the otherv the crank L, spring L5, and plug L3,snbstan tially as shown.

21. In a cord-knotter, a pair of looping-ja\vs, upon which the loop is formed, in combination with apair of nipping-jaws which draws tbe cut ends of the binding-cord into the loopingjaws, and by which said ends are clamped,rods or bars K K', 'and a cam-wheel provided with grooves q g' and ff'j'2, substantially as and for the purpose specified.

22. In a cord-knotter, tbe binder-mechanismsupporting frame A,provi'ded with the curved guides O' O2 and clamping-face O3 and cam O4, in combination with the clamping-lever P, provided on its clamping end with the hinged cord-bending arm P',having projection P2 and spring'P3, substantially as shown.

23. Ina cord-knotter,the binder-mechanismsupporting frame A, provided with slot O and clamping-face O3 and cam O4, in combination with clamping-lever P, provided on its clamp- `ing end with hinged cordbending arm P',

having projection P2, spring P3, spring P4, arm H, and cam G', substantially as set forth.

24. In a cord-knotter, the looper vhaving curved jaws L6 L7, which act as cams upon the stripping and tightening finger, provided with groove Z5, in combination with means to reciprocate said jaws, the finger N, having prong u, which lies in said groove, and spring N', substantially as set forth.

25. In a cord-knotter, tbe combination of a looper having curved jaws which act as cams upon the strippin g and tightening finger, with a pivoted nger, N, having prong n and depression or curved part u', and spring N' to press the prong against the looper.

26. In a cord-knotter, a looper combined with a clamp-lever, P, provided on its clamping end with a pivoted cord-bending arm, P', having projection P2 and extension p2, and spring P3, substantially as shown and described.

27. In a cord knotter, a binderframe provided with a guideslot,0,in combination with a reciprocating looper adapted to reciprocate horizontally in the direction of its length and without rotary motion, and aguide-piece, N2, secured to said binder frame 'and extending down to the looper-body, and ada-pted to prevent the cords prematurely passing over the end of' thelooper during its reciprocation,sub stantially as shown.

28. In a cord-knotter, the cord-holder consisting of rigid fingers R', spring-fingers R2, pressing against said rigid fingers, and cutter-block Q, in combination with. pivoted gathering-fingers R2 and knife R4, substantially as and for the purpose specified.

29. In a cord-knotter, the combination of rigid'curved fingers It', curved spring-fingers combination with the pivoted knife R4, having cutting-edge r2 and flat edge r2, substantially as shown. Y

32. In a grain binder, the combination of rigid lingers R', spring ngers R2, pivoted gathering fingers R2, having their gathering ends made of' curves r and r', cuttenblock Q, having edge q and curved edge q,and pivoted knife R, having removable blade R5, provided with curved cutting-edge r2 and dat edge r,

substantially as shown.

33. In a cord-knotter, tbe combination of a cord-clamp between the gavel and looper, and a cord-holder with bars I and I', bell-crank I2,

lever H, and cams G' and G2.

34. In a cord-knotter, a cord-holder, in combination with bar I', having stop t4, bell-crank I2, pivoted to lever H, and having one of its arms pivoted to bar I', the stop 'i4 being a'rranged in line of movement of' said arm and between the two pivots, spring i3, cam G', and cam G2, substantially as and for the purpose speciiied.

35. In a grain binder, the hollow binderarm shaft C, carrying on its end the rigid part D' of the binder arm, in combination with means to rock said shaft, tbe shaft C3, provided on its end with a crank or eccentric, c, rod c', and pivoted or hinged part `D2 of the binderarm D, substantially as and for the purpose specified. .i

36. In. a grain-binder, the hollow binder-arm shaft C, provided on one end with a crank, C2, and on the other with the rigid part D' of' the binder-arm, in combination with shaft C3, provided on one end with crank C4 and on the other with an eccentric, c, the bar or rod c', hinged part D2 of the binder-arm, rod E,haviug rigid collar @,or its equivalent,loose collar E2, rod E, spring E2, stop c'. friction-roller e2, and a cam to reciprocate said rod E, substantially as and for the purpose specified.

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37. In a grain-binder, a tension device which y consists of a rigid clamping-jaw, A", and pivoted clamping-jaw A3, in combination with a spring, AS, one end of' which is connected to said hinged jaw A3 and the other to a rocking or oscillating part, A7, and means to rock said part to vary the tension oi the spring automatically and while binding, substantially as and for the purpose specied.

38. In a cord-knotter, two pairs of reciproeating jaws adapted to form the loop and tie the knot, in combination with cranks to actuate the jaws, lind cams m5 Z6 7, and means to reciprocate said jaws, substantially as and for the purpose specied.

39. In a. cord knetter, the reciprocating looper L, having jaws upon one end, in combination with a pair of reciprocating` nipper-jaws, rigid guide N2, and pivoted nger N, with its spring N', said parts causing the cords to be presented to the Iooper in the right place.

40. In a cord-knotter, a. pair of' reciprocating looper jaws, and means to Wrap the nord around said looper, in combination with a pair of reciprocating nipper-jaws which advances and seizes the cord, and after it is ont draws -the free ends into the looper -jaws, by which they are clamped, means to reciprocate seid looper and nipper jaws Without rotating them, and means to draw the cord ends formed by the loop around the gevel together and firmly clamp them.

In testimony` ot' which invention I hereunto set my hand.

` RUDOLPH M. HUNTER. Witnesses:

R. S. CHILD, Jr., LOUIS J. MATOS. 

